Home / 127,719.23-176,252.54-71,130.60

Finding the Fourth Proportional to 127,719.23, 176,252.54 and 71,130.60

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Solution

The fourth proportional to 127,719.23, 176,252.54 and 71,130.60 is: 98,160.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,719.23 : 176,252.54 = 71,130.60 : x
  2. Step 2: Convert to fraction form
    127,719.23/176,252.54 = 71,130.60/x
  3. Step 3: Cross multiply
    127,719.23x = 176,252.54 × 71,130.60
  4. Step 4: Simplify right side
    127,719.23x = 12,536,948,921.72
  5. Step 5: Solve for x
    x = 12,536,948,921.72/127,719.23
  6. Step 6: Final answer
    x = 98,160.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.